2.4 Inch TFT LCD Display Module

Shenzhen Hongrui Optoelectronic Technology Co., Ltd., professional LCD display, LCM LCD module, LED backlight source, TP touch screen design development, manufacturing. With a group of high-quality, experienced engineering and technical personnel, to provide you with quality products and services.
The company is leading the middle and high grade TN, HTN, STN, VA, TFT products. At the same time, we provide drilling, grinding Angle and other special process products, supporting LCM, HEAT SEAL. The company's products are widely used in communication terminals (smart phones, tablet computers, etc.), household appliances, automotive electronics, digital products and other industries, and are exported to Hong Kong, Taiwan, Europe, America, Japan and South Korea and other regions and countries.

A thin-film transistor liquid crystal display, 2.4 Inch TFT LCD Display Module for short, is a type of LCD display that uses thin-film transistor technology to improve image quality.
2.4 Inch TFT LCD Display Modules have many advantages over traditional LCD displays. While traditional LCDs use a single layer of transistors, TFT LCDs use a thin film of transistors. This allows for better image quality, as well as improved response time and lower power consumption. TFT LCDs are also thinner and lighter than traditional LCDs, making them ideal for use in portable devices.

Substrate Materials: The foundation of a TFT-LCD module is its substrate, which serves as the base for depositing various layers. Typically, glass is used as the substrate material due to its excellent transparency, stability, and flatness. However, advancements in technology have led to the emergence of flexible displays that use plastic substrates, allowing for curved and foldable screens.

Liquid Crystals (LCs): Liquid crystals are at the core of TFT-LCD technology, responsible for controlling the passage of light and creating the images we see. These unique materials have a liquid-like structure but can exhibit characteristics of both liquids and solids. When an electric field is applied, the orientation of liquid crystals changes, affecting the polarization of light passing through them and altering the display's pixels.

Thin-Film Transistors (TFTs): TFTs are crucial components that control individual pixels on the display. These transistors are made from semiconductor materials, such as amorphous silicon (a-Si) or low-temperature polysilicon (LTPS). When a voltage is applied to the TFT, it allows current to flow and modulate the liquid crystals' alignment, resulting in the display of different colors and images.

Color Filters: Color filters are responsible for displaying vibrant colors on the screen. These filters are typically made of organic compounds, known as dyes, that selectively absorb specific wavelengths of light. By placing red, green, and blue color filters in a precise pattern, the TFT-LCD module can display a full spectrum of colors when combined with liquid crystals and backlighting.

Backlight Unit (BLU): The backlight unit is a critical component that provides the illumination necessary for the LCD module to produce visible images. Commonly, white light-emitting diodes (LEDs) or cold cathode fluorescent lamps (CCFLs) are used as the light source. The BLU's uniform and controlled lighting ensures consistent brightness across the entire display.

Polarizers: Polarizers are films placed on the front and back of the TFT-LCD module, helping to control the polarization of light passing through the liquid crystals. The polarizers ensure that light is effectively filtered and modulated by the liquid crystals to produce the desired colors and images.